Security
WorkCentre 5300 Series Multifunction Printer
System Administrator Guide
56
Digital Certificates
A digital certificate must be installed on the printer before you can enable secure HTTP (SSL). A digital
certificate is a set of data used to verify the identity of the holder or sender of the certificate. A
certificate includes the following data:
• Information about the person, organization, or computer that the certificate is issued to, including
the name, location, email address and other contact information.
• Serial number of the certificate
• Expiration date of the certificate
• Name of the certificate authority (CA) that issued the certificate
• A public key
• A certificate authority’s digital signature
Installing a Digital Certificate
There are three ways to install a certificate on the printer:
• Create a Self-Signed Certificate. The printer creates its own certificate, signs it, and creates a
public key to be used for encryption.
• Create a request to have a certificate authority, or a server functioning as a certificate authority
sign a certificate and then upload the certificate to the printer. An example of a server functioning
as a CA is Windows Server running Certificate Services.
• Install a certificate created by a trusted intermediate or root CA. For details, see Managing
Certificates on page 57.
Note: Installing a self-signed certificate is less secure than installing a certificate signed by a
trusted CA. However, if you do not have a server functioning as a certificate authority this is your
only option.
Creating a Self-Signed Certificate
1. Enable S/MIME capability for the self-signed certificate if necessary. For details, see S/MIME on
page 60.
2. In CentreWare IS, click Properties > Security > Machine Digital Certificate Management.
3. Click Create New Certificate.
4. Select Self Signed Certificate.
5. Click Continue.
6. Select the Public Key Size and type the name of the Issuer.
7. Next to Days of Validity, type the number of days (1-9999) until the certificate expires.
8. Click Apply.
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